Fan guide and tension device.



w. R. ILLINGWORTH.

FAN GUIDE AND TENSION DEVICE, APPLICATION FILED OCT. 12, 1915.

PatentedJuly 25, 1916.

lint/619501 Mu MM flay .22 L man 0177' WILLIAM ROY ILLINGWORTH, 0F IB ONDURAZN '1, IOWA.

FAN GUIDE AND TENSION DEVICE.

Specification of Letters Patent.

Patented July 25, 1916.

Application filed October 12, 1915. Serial No. 55,572.

To all whom it may concern Be it known that 1, WILLIAM ROY ILLING- WORTH, a citizen of the United States, and resident of Bondurant, in the county of Polk and State of Iowa, have invented a certain new and useful Fan Guide and Tension Device, of which the following is a specification.

The object of my invention is to provide a guide and tension device for fan belts on a motor vehicle.

A further object is to provide such a device, especially adapted for use on Ford cars.

A further object is to provide such a device of simple, durable and inexpensive construction, having a pair of guide arms, means for mounting the same on a bolt already on the car, and a tension device adapted to yieldingly impose tension on the belt.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects eontemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which: 3

Figure 1 shows a front elevation of a fan belt on an automobile with my improved guide and tension device installed on the machine. Fig. 2 shows a side elevation of the guide and tension device, and a portion of the belt. Fig. 3 shows a rear elevation of the guide and tension device. Fig. 4 shows a vertical, sectional view, through the roller on the tension device, and Fig. 5 shows a horizontal, sectional View, taken on the line 55 ofFig. 1. p V

In the accompanying drawings, I have used the reference numeral 10 to indicate the lower belt pulley, and the numeral 11 to indicate the upper belt pulley of an automobile. Traveling'on the pulleys is a fan belt 12. 4

My improved guide and tension. device comprises a horizontal rod 13, having at one end an arm14 inclined upwardly over the rod 13 preferably at an angle somewhat less than thirty-five degrees, and having in its upper end an opening receiving a bolt 14 ordinarily found on a Ford engine, whereby the arm 14 is secured to the engine 15.

Two spaced horizontal rods 16 having screw threaded ends extended through suit able openings in the rod 13 are extended toward the f l belt on opposite sides thereof,

as shown in Figs. 2 and 3. Nuts 17 are the belt from slipping off the pulleys. A rod 13 projects beyond the belt 16 at the end of the rod opposite the arm 14, and on said pro ecting end isrotatably mounted an upwardly extending arm 20. A nut 21 holds the arm 20 on the rod 13. On the upper end of the arm 20 is a right angled extension 22 parallel with the rod 13, on which is rotatably mounted a case hardened sleeve 23.

Mounted on the sleeve 23 is a spool 24, having at its ends annular circumferential flanges 25, adapted to hold the belt 12 on the spool. The ends of the spool are provided with hollow compartments 26, in which are secured grease cups 27. -On the end of the extension 22 is a nut 28 which holds the spool in position on the exten-- sion. It will readily be seen that by. removing the nut 28, the spool may be removed from the extension 22, whereupon the grease cups may be removed and filled with oil. A case hardened sleeve is provided to take most ofthe wear, and so arranged that it can be readily removed and replaced when desired. The spool 24- is preferably of wood. Wound on the rod 13 is a spring 29 having a portion extended upwardly and bent over the arm 20 at 30, whereby yield ing tension is imposed on the arm'20, and

the spool 24.

In the practical use of my improved guide and tension device, the device is installed on the car by means of a bolt 14 The rods 16 are located on opposite sides of one of the stretches of the belt, and the spool 24 is placed adjacent to the belt in such a way that the spring tends to press the spool against the belt, as clearly shown in Fig. 1. It will readily be seen that if-the belt should become somewhat looser, the spring 29 will exert a constant yielding pressure on the spool whereby tension on the belt may be kept constant.

it is my intention to cover by this application any such changes which may beineluded within the scope of the following claims. y I claim as my invention: 1. A guide. and tension device for fan belts comprising a rod, means for securing said rod to a support, a pair of spaced arms on said rod extending at right angles to I belts, comprising a rod having an arm on one end thereof arranged at right angles to said rod, means for securing said rod to a support, a pair of spaced arms on said rod extending therefrom at right angles to said rod in parallel relation to each other, an

arm pivotally mounted on said rod at right angles thereto having at its outer enda right angled extension, a spool mounted on said extension, and a yielding device tending to 7 move said last described arm in one direction, and sleeves rotatablymounted on said second described rods.

3. A guide and tension device for fan belts comprising a rod having an arm on one end thereof arranged at right angles to said rod, means for securing said rod to a support, a pair of spaced arms on said rod extending at right angles to said rod in' parallel relation to each other, an arm pivotally mounted on said rod at right angles thereto having at its outer end a right angled extension, a slee e rotatably mounted on said extension, a spool rotatably mounted on said sleeve having hollow ends, grease cups mounted in said hollow ends.

4; A guide and tension devicefor belts comprising a supporting member adapted to stand adj acent toa belt, a pair of guide arms on said supporting member adapted to receive the belt between them and 'a tension member pivotally mounted on said supporting member adapted to engage said belt for yieldingly moving it in one direction.

Des Moines, Iowa, October 8, 1915. WILLIAM ROY ILLINGWORTH.

Witnesses:

A. SHERMAN, J. MAJsmR. 

